Question

A model engine is designed to produce 1,500 joules of kinetic energy for every 3,400 joules of chemical energy taken in. The thermal energy of the entire engine increases by 900 joules in the process. Choose all the correct statements.

A model engine is designed to produce 1,500 joules of kinetic energy for every 3,400 joules of chemical energy taken in. The thermal energy of the entire engine increases by 900 joules in the process. Choose all the correct statements.



There are 1,900 joules of potential energy in this system.



There are 900 joules of energy destroyed in this system.



There are 2,500 joules of work that is being done by this model engine.



There are 1,000 joules of energy that isn't work, which leaves the system.



There are 1,500 joules of energy that can be used to move an object.

Answer 1

None of the statements are correct.

Step-by-step explanation:

There is no mention of potential energy in the given information, so it is not correct to say that there are 1,900 joules of potential energy in this system.

It is not correct to say that 900 joules of energy are destroyed in this system. Energy cannot be destroyed, it can only be converted from one form to another or transferred from one place to another.

It is not correct to say that 2,500 joules of work are being done by this model engine. Work is defined as the product of force and displacement, and the given information does not include any information about force or displacement.

It is not correct to say that 1,000 joules of energy leave the system. The given information only states that the thermal energy of the engine increases by 900 joules, but does not specify whether any other forms of energy leave the system.

It is correct to say that 1,500 joules of kinetic energy are produced by this model engine for every 3,400 joules of chemical energy taken in. However, it is not correct to say that this energy can be used to move an object without any further information about the object or the conditions under which the energy would be used.